PC making strange noise! Any ideas?


  1. martinlest
    Posts : 661
    Windows 7 Home Premium SP1 64-bit
       New #1

    PC making strange noise! Any ideas?


    My PC runs Windows 7 x64 and is basically an Asus H97I+ M/b, I7-4790K CPU & GTX970 GPU. There are two SSDs for hard drives...

    Whenever I am running MS Flight Simulator, I get a strange, high-pitched 'chirping' noise from what should be a silent PC, fans apart. After Googling I kind of decided it was coil whine from the GPU:

    GeForce GTX 970 Coil Whine Concerns | PC Perspective

    but having opened up the case and listened more closely (literally) the noise seems to be coming more from the CPU. If so, what could it be? Pretty sure it's not mechanical (i.e. fans).

    Oddly, as I say, I don't get the noise other than when I run MS Flight Simulator (I don't use this particular PC for much else). I tried stress testing the CPU with Intel Burn and the GPU with this:

    https://unigine.com/products/benchmarks/valley/

    ..also copied large files from one SSD to another. None of which caused any noise at all. It's only when running FS9 (haven't tried FSX). Makes no sense to me. Recording of the noise is here:

    https://mega.nz/#!rgRxWY6J!kvSfOr6tf...TjxfXt-LXdkAdQ

    Any ideas??

    Thanks!
      My Computer
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  3. martinlest
    Posts : 661
    Windows 7 Home Premium SP1 64-bit
    Thread Starter
       New #2

    FYI - solution here - the noise stops instantly:

    high pitched noise coming from cpu area [Solved] - Motherboards - Motherboards

    1. Execute regedit
    2 . Locate: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Power \ PowerSettings \ 54533251-82be-4824-96c1-47b60b¬740d00 \ 5d76a2ca-e8c0-402f-a133-215849¬2d58ad
    3. Change Attributes from 1 to 0.
    4. Then, through the control panel - power - in the settings mode select power management processor. There will be an option disabling idle processor and high pitched noise immediately disappears.

    Martin
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